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Seagate Momentus XT ST750LX003 Hybrid 750GB Review



The benefits of the Seagate Momentus XT 750GB drive are not really ones that are instantly obvious in synthetic benchmarks. That being said the drive performance is customized by each user and how the computer is used and by the applications that are most commonly used. This means each and every user will end up with a drive that opens up and accesses application based on their own unique usage history. Games, Productivity Suites, Photoshop,iTunes and more all will open faster as the Adaptive Memory algorithms learn the usage history. Overall it is not as fast as an SSD in many ways but in those instances that do matter such as boot times and application loading the Seagate drive is more than up to the task of delivering an improvement in the "feel" and user experience. We all want a computing experience where we do not have an extended wait for programs to open. Chopping seconds off this time frame is a tangible benefit that improves the overall user experience. I think my little HP Mini 311 netbook has seen more drive partners than it cares to count in the drive(pun intended) to see what the best balance between performance and battery life will be with a long string of Solid State drives. The biggest improvement I have made to date on this test bed is to install a solid state drive as it reduced my boot times to mere seconds and increased battery life. Both tangible benefits. The difficult thing for this setup is that I have to take a hit on the drive capacity to get this benefit. Sure you can get increased Solid State drive capacities but the costs quickly exceed the cost of the platform by the time 240GB is reached. The Momentus XT fixes the capacity issue without the compromise of going back to standard HDD performance levels all for a cost per GB that is much more palatable. A 240GB Sandforce SF-22XX equipped drive will set you back close to if not over $500 while the Momentus XT has a more modest $245 price point.

The 750GB Momentus XT Hybrid drive sees a 100% increase in the amount of SLC NAND used when compared to the 500GB gen 2 drive released last year. The capacity has increase by 50%, the interface has changed to a SATA 6Gb/s and comes with new "FAST" factors. All this is great but what happens when the NAND flash fails? Worst case scenario is that the drive acts just like a 7200 RPM mechanical drive. There is no data loss if the NAND fails as the data is written in parallel to both the platters and to the NAND giving some much needed redundancy without a huge performance overhead cost. All the fancy buzz words and technology boil down to an improvement in user experience without the cost, reliability and capacity concerns of an SSD. I cannot see where this drive from Seagate has any real down sides as you get the snappy performance of an SSD with the capacity of a traditional mechanical drive.



  • Hybrid Design
  • Fast Factors
  • Large capacity
  • SSD like  Boot times
  • Adaptive Memory Technology
  • SLC Flash
  • Cost per GB Low compared to SSD
  • No Drivers needed
  • 5 year Warranty



  • Pricing(Market Factors)


OCC Gold

  1. Introduction & Closer Look
  2. Specifications & Features
  3. Testing: Setup
  4. Testing: HDTune 4.60
  5. Testing: HD Tach
  6. Testing: Crystal Diskmark
  7. Testing: ATTO
  8. Testing: AS SSD
  9. Testing: IO Meter
  10. Testing: PCMark Vantage
  11. Testing: Startup and Shutdown
  12. Conclusion:
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